They were less stooped than we, less springy in their movements. Their backbones and hips and knee-joints seemed more rigid. Their arms were not so long as ours either, and I did not notice that they ever balanced themselves when they walked, by touching the ground on either side with their hands. Also, their muscles were more rounded and symmetrical than ours, and their faces were more pleasing. Their nose orifices opened downward; likewise the bridges of their noses were more developed, did not look so squat nor crushed as ours. Their lips were less flabby and pendent, and their eye-teeth did not look so much like fangs. However, they were quite as thin-hipped as we, and did not weigh much more. Take it all in all, they were less different from us than were we from the Tree People. Certainly, all three kinds were related, and not so remotely related at that. The fire around which they sat was especially attractive. Lop-Ear and I sat for hours, watching the flames and smoke. It was most fascinating when fresh fuel was thrown on and showers of sparks went flying upward. I wanted to come closer and look at the fire, but there was no way. We were crouching in the forks of a tree on the edge of the open space, and we did not dare run the risk of being discovered. The Fire-Men squatted around the fire and slept with their heads bowed forward on their knees. They did not sleep soundly. Their ears twitched in their sleep, and they were restless. Every little while one or another got up and threw more wood upon the fire. About the circle of light in the forest, in the darkness beyond, roamed hunting animals. Lop-Ear and I could tell them by their sounds. There were wild dogs and a hyena, and for a time there was a great yelping and snarling that awakened on the instant the whole circle of sleeping Fire-Men. Once a lion and a lioness stood beneath our tree and gazed out with bristling hair and blinking eyes. The lion licked his chops and was nervous with eagerness, as if he wanted to go forward and make a meal. But the lioness was more cautious. It was she that discovered us, and the pair stood and looked up at us, silently, with twitching, scenting nostrils. Then they growled, looked once again at the fire, and turned away into the forest. For a much longer time Lop-Ear and I remained and watched. Now and again we could hear the crashing of heavy bodies in the thickets and underbrush, and from the darkness of the other side, across the circle, we could see eyes gleaming in the firelight. In the distance we heard a lion roar, and from far off came the scream of some stricken animal, splashing and floundering in a drinking-place. Also, from the river, came a great grunting of rhinoceroses.